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- To: chrony-users@xxxxxxxxxxxxxxxxxxxx
- Subject: Re: [chrony-users] Refclock Integration Advice
- From: Miroslav Lichvar <mlichvar@xxxxxxxxxx>
- Date: Mon, 23 Nov 2020 13:07:21 +0100
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On Fri, Nov 20, 2020 at 03:25:56PM +0000, Chang, Benjamin wrote:
> Am I forgetting something or misunderstanding something? Is maybe why my PPS so hard to sync to because the pulse is so short?
Too short pulse could definitely be a problem. If you run ppstest on
the PPS device, do you see a new sample with each second?
> Do you have any suggestions on how to get chrony to better sync to my system? I did notice it seems to receive packets better when its not selected as a source, but that defeats the whole purpose.
That is odd. You could try building chronyd with the --enable-debug
option and running chronyd -d -d to see if chronyd is getting the PPS
samples and why it is dropping them. Your NTP server seems to be ok
(the reported +/- value), so I don't think this is a problem in
locking of the PPS refclock.
--
Miroslav Lichvar
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